src/arch/x86/regs/float.hh

   1 /*
   2  * Copyright (c) 2007 The Hewlett-Packard Development Company
   3  * All rights reserved.
   4  *
   5  * The license below extends only to copyright in the software and shall
   6  * not be construed as granting a license to any other intellectual
   7  * property including but not limited to intellectual property relating
   8  * to a hardware implementation of the functionality of the software
   9  * licensed hereunder.  You may use the software subject to the license
  10  * terms below provided that you ensure that this notice is replicated
  11  * unmodified and in its entirety in all distributions of the software,
  12  * modified or unmodified, in source code or in binary form.
  13  *
  14  * Redistribution and use in source and binary forms, with or without
  15  * modification, are permitted provided that the following conditions are
  16  * met: redistributions of source code must retain the above copyright
  17  * notice, this list of conditions and the following disclaimer;
  18  * redistributions in binary form must reproduce the above copyright
  19  * notice, this list of conditions and the following disclaimer in the
  20  * documentation and/or other materials provided with the distribution;
  21  * neither the name of the copyright holders nor the names of its
  22  * contributors may be used to endorse or promote products derived from
  23  * this software without specific prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  26  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  27  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  28  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  29  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  30  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  31  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  32  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  33  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  34  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  35  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  36  *
  37  * Authors: Gabe Black
  38  */
  39
  40 #ifndef __ARCH_X86_FLOATREGS_HH__
  41 #define __ARCH_X86_FLOATREGS_HH__
  42
  43 #include "arch/x86/x86_traits.hh"
  44 #include "base/bitunion.hh"
  45
  46 namespace X86ISA
  47 {
  48     enum FloatRegIndex
  49     {
  50         // MMX/X87 registers
  51         FLOATREG_MMX_BASE,
  52         FLOATREG_FPR_BASE = FLOATREG_MMX_BASE,
  53         FLOATREG_MMX0 = FLOATREG_MMX_BASE,
  54         FLOATREG_MMX1,
  55         FLOATREG_MMX2,
  56         FLOATREG_MMX3,
  57         FLOATREG_MMX4,
  58         FLOATREG_MMX5,
  59         FLOATREG_MMX6,
  60         FLOATREG_MMX7,
  61
  62         FLOATREG_FPR0 = FLOATREG_FPR_BASE,
  63         FLOATREG_FPR1,
  64         FLOATREG_FPR2,
  65         FLOATREG_FPR3,
  66         FLOATREG_FPR4,
  67         FLOATREG_FPR5,
  68         FLOATREG_FPR6,
  69         FLOATREG_FPR7,
  70
  71         FLOATREG_XMM_BASE = FLOATREG_MMX_BASE + NumMMXRegs,
  72         FLOATREG_XMM0_LOW = FLOATREG_XMM_BASE,
  73         FLOATREG_XMM0_HIGH,
  74         FLOATREG_XMM1_LOW,
  75         FLOATREG_XMM1_HIGH,
  76         FLOATREG_XMM2_LOW,
  77         FLOATREG_XMM2_HIGH,
  78         FLOATREG_XMM3_LOW,
  79         FLOATREG_XMM3_HIGH,
  80         FLOATREG_XMM4_LOW,
  81         FLOATREG_XMM4_HIGH,
  82         FLOATREG_XMM5_LOW,
  83         FLOATREG_XMM5_HIGH,
  84         FLOATREG_XMM6_LOW,
  85         FLOATREG_XMM6_HIGH,
  86         FLOATREG_XMM7_LOW,
  87         FLOATREG_XMM7_HIGH,
  88         FLOATREG_XMM8_LOW,
  89         FLOATREG_XMM8_HIGH,
  90         FLOATREG_XMM9_LOW,
  91         FLOATREG_XMM9_HIGH,
  92         FLOATREG_XMM10_LOW,
  93         FLOATREG_XMM10_HIGH,
  94         FLOATREG_XMM11_LOW,
  95         FLOATREG_XMM11_HIGH,
  96         FLOATREG_XMM12_LOW,
  97         FLOATREG_XMM12_HIGH,
  98         FLOATREG_XMM13_LOW,
  99         FLOATREG_XMM13_HIGH,
 100         FLOATREG_XMM14_LOW,
 101         FLOATREG_XMM14_HIGH,
 102         FLOATREG_XMM15_LOW,
 103         FLOATREG_XMM15_HIGH,
 104
 105         FLOATREG_MICROFP_BASE = FLOATREG_XMM_BASE + 2 * NumXMMRegs,
 106         FLOATREG_MICROFP0 = FLOATREG_MICROFP_BASE,
 107         FLOATREG_MICROFP1,
 108         FLOATREG_MICROFP2,
 109         FLOATREG_MICROFP3,
 110         FLOATREG_MICROFP4,
 111         FLOATREG_MICROFP5,
 112         FLOATREG_MICROFP6,
 113         FLOATREG_MICROFP7,
 114
 115         NUM_FLOATREGS = FLOATREG_MICROFP_BASE + NumMicroFpRegs
 116     };
 117
 118     static inline FloatRegIndex
 119     FLOATREG_MMX(int index)
 120     {
 121         return (FloatRegIndex)(FLOATREG_MMX_BASE + index);
 122     }
 123
 124     static inline FloatRegIndex
 125     FLOATREG_FPR(int index)
 126     {
 127         return (FloatRegIndex)(FLOATREG_FPR_BASE + index);
 128     }
 129
 130     static inline FloatRegIndex
 131     FLOATREG_XMM_LOW(int index)
 132     {
 133         return (FloatRegIndex)(FLOATREG_XMM_BASE + 2 * index);
 134     }
 135
 136     static inline FloatRegIndex
 137     FLOATREG_XMM_HIGH(int index)
 138     {
 139         return (FloatRegIndex)(FLOATREG_XMM_BASE + 2 * index + 1);
 140     }
 141
 142     static inline FloatRegIndex
 143     FLOATREG_MICROFP(int index)
 144     {
 145         return (FloatRegIndex)(FLOATREG_MICROFP_BASE + index);
 146     }
 147
 148     static inline FloatRegIndex
 149     FLOATREG_STACK(int index, int top)
 150     {
 151         return FLOATREG_FPR((top + index + 8) % 8);
 152     }
 153 }
 154
 155 #endif // __ARCH_X86_FLOATREGS_HH__